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TMR-Array-Based Pipeline Location Method and Its Realization

Author

Listed:
  • Zhenning Wu

    (College of Information Science and Engineering, Northeastern University, Shenyang 110819, China)

  • Hanyang Huang

    (College of Information Science and Engineering, Northeastern University, Shenyang 110819, China)

  • Guangdong Zhao

    (College of Information Science and Engineering, Northeastern University, Shenyang 110819, China)

  • Jinhai Liu

    (College of Information Science and Engineering, Northeastern University, Shenyang 110819, China)

Abstract

Pipeline inspection is important to ensure the safe operation of pipelines. Obtaining the location of an underground pipeline is a prerequisite for most inspection technologies. Existing pipeline location methods can find a pipeline’s location, but they require multiple measurements and cannot be used by automatic inspection robots. In this paper, a tunnel magnetoresistance (TMR)-sensor-array-based pipeline location method is proposed to solve this problem. Firstly, a detection probe is designed using a TMR sensor array. It is calibrated by the improved ellipsoid fitting method to measure the magnetic field around the pipeline accurately. Secondly, a relative pipeline-position-locating method is proposed by detecting the phases of the magnetic induction signals at different frequencies. Thirdly, a three-dimensional pipeline location method is proposed. The horizontal and vertical distances and the angle between the pipeline and the probe are calculated by measuring the magnetic induction amplitude. Finally, a simulation model and a test platform are established, and the experimental results illustrate that, by adopting the TMR array, the three-dimensional pipeline location method can locate a pipeline in real time in three dimensions with good accuracy.

Suggested Citation

  • Zhenning Wu & Hanyang Huang & Guangdong Zhao & Jinhai Liu, 2023. "TMR-Array-Based Pipeline Location Method and Its Realization," Sustainability, MDPI, vol. 15(12), pages 1-21, June.
    • Handle: RePEc:gam:jsusta:v:15:y:2023:i:12:p:9816-:d:1175106
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